Shock absorber



March 13, 1928. 1,662,223 H. F. WERNER ET AL I SHOCK ABSORBER Fil edAvril .1

Q v Q R INVENTORS N v Henry Frederick Il/Grner 2 Clarence .ZCFaZzn Nd l1g v ATTORNEY.

Patented Mar. 13, 1928.

*umrso satires HENRY F. "Willi/N13B AND CLARENCEE. FABER, OF NEWORLEANS,=LCUISIANA.

SHO CK ABSOBBER.

Application filed April 18, 1927. Serial No. 184,630.

This invention relates to a shock absorber designed primarily 'for usein connection with drive shafts of motor vehicles, but it is to beunderstood that-a shock absorber, in accordance with thisinvention, canbe employed for any purposes'for which' it' is found applicable, and theinvention has for its object to provide, in a' manner 21S'h619111- aftersetforth, a: shock absorber for relieving the shock on the startingrofamotor vehicle, I to relieve theshock on a differential by a missing1notor,"to' overcome the 'strainron a clutch whendriving the vehicleonan uneven road surface, as well asfor taking the strain and suddenshock off of universal joints, transmissions, clutches, motors,differential driving pinions, ring gears, differential gears, axleshafts and rear wheels.

Further objects ofthe l'IlVGDlllGIl are to provide, in a'manner as hereinafter set forth, a shock absorberwhich 1s snnple 111 its constructionand arrangement, strong, durable, compact, thoroughly eflicient in tsuse, readily installed, and comparatively inexpensive to set up. v

' With the foregoing 'and other ob ects in view the invention'consistsofthe novel con: struction, combination and arrangement of arts ashereinafter more specificallydescribed, and illustratec in theaccompanying drawings "wherein is shown an embodiment of theinventionfbut it is to be understood that changes, variations andmodifications can be resorted to' which 1 fall Within 1 the scopeof'the'clainis hereunto appended.

' In theydrawings wherein like reference characters denote correspondingparts throughout the several views: I

" Figure l'is a sectional elevation, of a shock absorber inaccordancewith this invention, applied to the'drive shaft of a-motorvehicle. Figure 2 is a section on l1ne 2'2 F gure 1. Figure 3 is asection on line-3-3 Figure 1.

' Figure 4 is a fragmentary View in top plan of a drive shaft section.Figure 5 is a section online 5+5 Figure 1.

A shock absorber, in accordance with this invention, includesa pairofbody sections, interengaging witheach other and 'TSSll: ientlyconnected together, and-by way of example the body sections are.illustrated constituting a. sectional drive shaft of a motor drivenvehicle. One of the drive shaft sections is indicatedat land the otherat 2. The section 1 is a rear section and the section 2 the frontsectionof the drive shaft.

The section lhas its forward-end provided yi'ith'asocket 3 disposedaxially thereof and nto which extends a protuberance 4.- formed on therear end of the section 2. The socket 3 is cylindrical in contour andthe'protuberance 4 corresponds in contour to] the shape of the socket 3.The protuberance i' is of greater length than the length of the socket'3 and is disposed axially of the rear endof the section 2. "The section1 is'formed inits periphery with a groove 5 of se ni-oval'cross sectionand segmental in lengthwise section. Mounted onthe section 1andenclosing the groove 5 is a collar 6 and which is secured to thesection 1. by a transversely extending pin 7 having itsendsflushwiththe-periphery of the collar 6, and further with the pinextending through the section 1 at mediametric center thereof, Thebodyof the section 6 is formed with apair of opposed openings 8, -9,.andeach of which in cross section is of'rectangu-lar contour. IThe openings8, 9 register with the groove 5-and ex.- tending through said openingsand groove is ai-koy 10 which snugly fits-the walls thereof and furtherhas its ends flush with'theyperiphery of the collar 6. The collardhasthe body thereof provided with a transversely extending socket 11 whichopens at theflinner side of the collar. V 1

' Mountedonthe section'2 is a 'collar12 and which is secured to saidsection 2 by a diametrically extendingpin 13 having 'its endsfiush'withthe' periphery of; the collar 12, in the same manner as shownin Figure 3 with respect'to the pinf'T. *The section-2 is formed with 7a peripheral 5 groove 14: of semi-oval cross section and segmental inlengthwise section. 1 The body portionbf the collar 12 is formed'withopenings in the same manner as; the=openings8,-9-are provided inthe collar 6,,and theopenings'in the collar 12register with the groove14 in'the same manner as the openingsS, 9' register with the groove 5.The openingsyin the collar l2 are of rectangular cross section-and oneof said 'opeiiingsis indicated at 15. Extendingfthrough the openings inthe collar 12, as well as the groove 14, is alley- 16 which snuglyengages the walls of the openings and groove. *The key 16 is-setup inthe same manner as thekey -10with'respect to: the collar 6. The collar'121 is formed in (the body thereof, with a transversely extendingsocket 17-wliich:opens at the innerfsideof the collar 12.

The periphery of the section 2 is formed with a lengthwise extendingrectangular reeess or pocket 18 in which is slidably mounted a key 19 ofa thickness greater than the depth of the pocket; 18. ltlounted on thesection :2 is a collar 20 having its inner tace formed with a groove 21which opposes the pocket 18. The key 19 is adapted to be positioned inthe groove 21, when desired, for the purpose of coupling the collar 20to the section 2 so that: the collar 20 will be bodily carried by thesection during the operation of the drive shaft. The key It) is :tormedwith a lengthwise extending opening 22 and extending therethrough is acap screw carrying a lock washer ill. The screw engages in the sectionand connects the key therewith. The opening 2' in corn nection with thescrew 23 provides for the adjusting ot the key 19 towards and from thecollar ill. \Vhen the key 19 couples the collar to the section 2 thescrew 23 is adjusted in a manner to securely maintain the key 19 fromshifting.

Surrounding the collar (3 and extending to and surrounding the collar20, is a sleeve 25 which is secured to the collar (3 by a series of capscrews :26 provided with lock washers 27. The screws engage in thecollar 6 and extend through the sleeve 2-3. The sleeve 25 is secured tothe collar 20 by a series of cap screws 28 provided with .lock washers29 and said screws 28 extend through the sleeve 25 and engage in thecollar 20.

Interposed between the sections 1, 2 is a thrust bearing consisting of apair of race members 30 which are mounted on the pro tuberance st andhave interposed therebetween bearing balls 31. The race members 30 havetheir outer diameter the same as the diameter of the sections 1, 2.

The collar 12 is spaced from the collar 20 but is arranged in Closeproximity thereto, and interposed between the collars 12 and 20 is athrust bearing formed of a pair of race members 32 having interposedtherebetween bearing balls 33. The outer diameter of the race memberscorrespond to the outer diameter of the collars 12 and 20. The sleeve 25is formed with a peripheral boss 3t positioned approximately at thetransverse median of the sleeve and the latter is formed with an opening35 which extends through the boss 34. The wall of the opening 35 isthreaded and engaging therewith is a peripherally threaded plug 36. Theopening 35 is provided for the supplying of lubricant to the chamber 37formed by the sleeve in connection with the collars.

Surrounding the sections 1, 2 and positioned within the chamber 37 is ashock absorbing member or element. in the form of a coiled spring 38having its coils spaced from the inner face of the sleeve 25. The

spring 38 extends from the collar 6 to the collar 12 and is formed witha pair of angularly dis 'iosed ends 39. 40 extending lengthwise withrespect to the sleeve 25. The end 39 is mounted in the socket ll and theend 40 in the socket 17. The spring 538 provides a resilient crniplingbetween the sections 1. 2.

The t'nnction of the key 1.) is that in the event the spring :3? shouldbreak, the key 1!) can be shifted trom the position shown in Figure l toengage in the groove 21. and after being secured in its shiftedposition, the sections 1 and i, are coupled together to form a solidunit and the operation of the car can continue until the spring isreplaccal. The normal position of the key 19 is as shown in l igurc land it; is not shifted to such position until it is employed forcoupling the sleeve to the section 2 so that the sections will operateas a unit when the spring 38 broken.

The device functions to take the shock oil of universal joints,transmissions, clutches and motors as well as to take the shock oil ofdilierential driving pinions, ring gears, differential gears, axleshafts and rear wheels, and therefore it is thought the many advantagesof a shock absorber, in accordance with this invention, can be readilyunderstood, and although the preferred embodiment of the invention is asillustrated and described, yet it is to be understood that changes inthe details of construction can be had which will fall within the scopeof the claims hereunto appended.

hat. we claim is:

l. A shock absorber comprising a pair of body sections positioned inendwise opposed relation, a thrust bearing interposed between said bodysections, a pair of spaced collars mounted on one of said sections andone tixed and the other normally loose with respect to said section, acollar fixed to the other sections, a sleeve secured to said lastmentioned collar and to said normally loose collar, means for connectingsaid normally loose collar to its body section, a coil springsurrounding said body section and having one of its ends extending intosaid fixed collars and its other end into the other of said fixedcollars.

2. A shock absorber comprising a pair of body sections arranged inendwise opposed relation and interengaging with each other, a collarmounted on each of said sections, a pin for securing the collar to itsrespective section. a key for securing a collar to its respectivesection, -ach of said collars formed with a socket, a resilient couplingmember surrounding said bodv sections and having one end extending intoone of said sockets and its other end extending into the other of saidsockets, a normally loose ill) Jun

ISO

collar mounted on one of said sections and spaced from the fixed collarcarried by said section, a sleeve secured to the other fixed collar andto said loose collar and enclosing said resilient element, and means forsecuring said loose collar to its respective section to provide for saidsections operating as a unit when the resilient element fails to performits coupling function between 1 the sections.

A shock absorber comprising a pair of body sections in endwise opposedarrangement, one of said sections provided with a socket and the otherwith a protuberance extending into the socket and of greater length thanthe length of the socket, said socket and protuberance arranged at theopposed ends of said sections, a thrust bearing interposed between theopposed ends of said sections, a collar mounted on each'of saidsections, plural means for securing each collar to its respectivesection, a coiled spring surrounding said sections and having one endextended intoone of said collars and the other end extended into theother of said collars and providing a resilient coupling connectionbetween said sections, an annulus loosely mounted on one of saidsections and in proximity to the collar thereon, a sleeve secured to thecollar on the other of said sections and to said annulus, andmeans forsecuring the annulus to its respective section to provide for saidsections moving as a unit when said spring fails to perform its couplingfunction between the sections.

In testimony whereof, we aflix our sig natures hereto.

HENRY F. WVERNER. CLARENCE FABER.

